def setInitHall(init_hall=0):
b0_hall = GetHall(dipole_pair[0])
b1_hall = GetHall(dipole_pair[1])
overshoot_margin = 0.001
print("Beginning initializing dipoles...")
while ((b0_hall - init_hall) < overshoot_margin
or (b1_hall - init_hall) < overshoot_margin):
diff = max(abs(b0_hall - init_hall), abs(b1_hall - init_hall))
b0_i = GetMagnet(dipole_pair[0])
dI = 0.02
if (diff >= 0.001):
dI = 0.1
elif (diff > 0.00005):
dI = 0.01
# change b0 and compare
SetMagnet(dipole_pair[0], b0_i + dI)
#saving the new actual hall value
sleep(3)
b0_hall = GetHall(dipole_pair[0])
SetMagnet(dipole_pair[1], b0_i + dI)
b1_hall = GetHall(dipole_pair[1])
print(f"Fields: {b0_hall:.6f}, {b1_hall:.6f}")
time1 = CycleMagnet(dipole_pair[0])
time2 = CycleMagnet(dipole_pair[1])
sleep(np.max([time1, time2]) + 30)
cont = input("Once magnets have settled, enter 'y' to continue...")
if (cont != 'y'):
print("Exiting...")
exit()
print("Magnets cycled above initial Hall values.")
while (abs(b0_hall - init_hall) > dHall):
diff = abs(b0_hall - init_hall)
dI = 0.02
#this takes too long if they're really far so I'm gona add this for now
if (diff >= 0.001):
dI = 0.1
elif (diff > 0.00005):
dI = 0.01
b0_i = GetMagnet(dipole_pair[0])
if (b0_hall > init_hall):
# change b0 and compare
SetMagnet(dipole_pair[0], b0_i - dI)
#saving the new actual hall value
sleep(3)
b0_hall = GetHall(dipole_pair[0])
print("B0 set to initial value.")
matchHall()
def matchHall():
b0_hall = GetHall(dipole_pair[0])
b1_hall = GetHall(dipole_pair[1])
print("Beginning matching...")
while (abs(b0_hall - b1_hall) > dHall):
diff = abs(b0_hall - b1_hall)
dI = 0.02
'''
#this takes too long if they're really far so I'm gona add this for now
if (diff >= 0.001):
dI = 0.1
elif (diff > 0.00005):
dI = 0.01
'''
b0_i = GetMagnet(dipole_pair[0])
b1_i = GetMagnet(dipole_pair[1])
if (b0_hall > b1_hall):
# change b0 and compare
SetMagnet(dipole_pair[0], b0_i - dI)
#saving the new actual hall value
sleep(3)
b0_hall = GetHall(dipole_pair[0])
elif (b0_hall < b1_hall):
# change b1 and compare
SetMagnet(dipole_pair[1], b1_i - dI)
#saving the new actual hall value
sleep(3)
b1_hall = GetHall(dipole_pair[1])
print(
f"Fields: {b0_hall:.6f}, {b1_hall:.6f}, dHall: {((b0_hall - b1_hall)/b0_hall*100):.5f}%"
)
print("Done matching Hall values.")
def scanDipoles(b_small, b_big):
#set number of steps (from previous experience scanning although might need adjustments)
bs_stepsize = small_step
bb_stepsize = big_step
#initial nominal quad values
q0_init, q1_init = GetMagnet(quad_pair[0]), GetMagnet(quad_pair[1])
for i in range(total_steps):
print(f"Step {i+1} out of {total_steps} large steps.")
#get initial current of dipoles
bs_init = GetMagnet(b_small)
bb_init = GetMagnet(b_big)
#one magnet goes down 0.06 A, the other 0.02 A x 3
SetMagnet( b_big, bb_init - bb_stepsize)
for j in range(0, int(bb_stepsize/bs_stepsize)):
#ramps down this magnet in small steps multiple of the large step
SetMagnet( b_small, bs_init - bs_stepsize*(j+1))
sleep(5)
#changing quads and taking pictures at 4 tunes
#take picture with all at init values
all_nom_im= SaveIm('allNom', viewer)
#take picture with all at zero
SetMagnet(quad_pair[0], 0)
SetMagnet(quad_pair[1], 0)
pos_1= GetBeamPos(all_nom_im, viewer)
sleep(5) #might need to increase this if the jumps in current are big
all_zero_im= SaveIm('allZero', viewer)
#take picture with first quad at half
SetMagnet(quad_pair[0], q0_init/2)
pos_2= GetBeamPos(all_zero_im, viewer)
sleep(5)
q0_half_im= SaveIm('q0half', viewer)
#take picture with second quad at half
SetMagnet(quad_pair[1], q1_init/2)
pos_3= GetBeamPos(q0_half_im, viewer)
sleep(5)
q01_half_im= SaveIm('q01half', viewer)
#return quads to original values
SetMagnet(quad_pair[0], q0_init)
SetMagnet(quad_pair[1], q1_init)
pos_4= GetBeamPos(q01_half_im, viewer)
#peak/intensity
#pk_1 = pos_1[2:]
#pk_2 = pos_2[2:]
#pk_3 = pos_3[2:]
#pk_4 = pos_4[2:]
#centroid positions
pos_1 = pos_1[0:2]
pos_2 = pos_2[0:2]
pos_3 = pos_3[0:2]
pos_4 = pos_4[0:2]
#get quadratic distance from centroids
print(f"Centroids:\n({pos_1[0]:.2f}, {pos_1[1]:.2f})\n({pos_2[0]:.2f}, {pos_2[1]:.2f})\n({pos_3[0]:.2f}, {pos_3[1]:.2f})\n({pos_4[0]:.2f}, {pos_4[1]:.2f})")
distance= Dist(pos_1, pos_2, pos_3, pos_4)
print(f"Dist= {distance:.5f}")
bs_hall = GetHall(b_small)
bb_hall = GetHall(b_big)
bs_i = GetMagnet(b_small)
bb_i = GetMagnet(b_big)
#save i, hall values and distance to file
f= open(f"{b_small}_{b_big}_Distance_{timestring}.txt", "a+")
f.write(f'{bs_i:.3f}\t{bb_i:.3f}\t{bs_hall:.7f}\t{bb_hall:.7f}\t{distance:.4f}\t{pos_1[0]:.4f}\t{all_nom_im}\n')
f.close()
#####################
if (abs(bs_hall - bb_hall) > dHall):
#if they are different, match again
matchHall()
else:
print(f"Fields: {bs_hall:.6f}, {bb_hall:.6f}, dHall: {((bs_hall - bb_hall)/bs_hall*100):.5f}%")
def scanDipoles(b_small, b_big):
#set number of steps (from previous experience scanning although might need adjustments)
bs_stepsize = small_step
bb_stepsize = big_step
#initial nominal quad values
q0_init, q1_init = GetMagnet(quad_pair[0]), GetMagnet(quad_pair[1])
#q2_init = GetMagnet("q11")
for i in range(total_steps):
print(f"Step {i+1} out of {total_steps} large steps.")
#get initial current of dipoles
bs_init = GetMagnet(b_small)
bb_init = GetMagnet(b_big)
for j in range(0,
int(bb_stepsize / bs_stepsize) + extra_small_step
): ## ADDED TWO MORE STEPS FOR THE FIELDS TO OVERLAP
#changing quads and taking pictures at 4 tunes
#take picture with all at init values
all_nom_im = SaveIm('allNom', viewer)
#take picture with q11 nom, q12 7/6
# SetMagnet(quad_pair[0], q0_init)
SetMagnet(quad_pair[0], 40)
SetMagnet(quad_pair[1], q1_init)
#SetMagnet("q11", q2_init)
pos_1 = GetBeamPos(all_nom_im, viewer)
sleep(
5
) #might need to increase this if the jumps in current are big
all_zero_im = SaveIm('Q11_40', viewer)
#take picture with q11 8/10 and q12 nom
SetMagnet(quad_pair[0], q0_init)
# SetMagnet(quad_pair[1], q1_init-17)
SetMagnet(quad_pair[1], 20)
#SetMagnet("q11", q2_init)
pos_2 = GetBeamPos(all_zero_im, viewer)
sleep(5)
q0_half_im = SaveIm('Q13_20', viewer)
#take picture with q11 *3/4, and q12 *11/12
SetMagnet(quad_pair[0], 52)
SetMagnet(quad_pair[1], 35)
#SetMagnet("q11", 40)
pos_3 = GetBeamPos(q0_half_im, viewer)
sleep(5)
q01_half_im = SaveIm('Q11_52_Q13_35', viewer)
#return quads to original values
SetMagnet(quad_pair[0], q0_init)
SetMagnet(quad_pair[1], q1_init)
#SetMagnet("q11", q2_init)
pos_4 = GetBeamPos(q01_half_im, viewer)
#peak/intensity
#pk_1 = pos_1[2:]
#pk_2 = pos_2[2:]
#pk_3 = pos_3[2:]
#pk_4 = pos_4[2:]
#centroid positions
pos_1 = pos_1[0:2]
pos_2 = pos_2[0:2]
pos_3 = pos_3[0:2]
pos_4 = pos_4[0:2]
#get quadratic distance from centroids
print(
f"Centroids:\n({pos_1[0]:.2f}, {pos_1[1]:.2f})\n({pos_2[0]:.2f}, {pos_2[1]:.2f})\n({pos_3[0]:.2f}, {pos_3[1]:.2f})\n({pos_4[0]:.2f}, {pos_4[1]:.2f})"
)
distance = Dist(pos_1, pos_2, pos_3, pos_4, True)[0]
print(f"Dist= {distance:.5f}")
bs_hall = GetHall(b_small)
bb_hall = GetHall(b_big)
bs_i = GetMagnet(b_small)
bb_i = GetMagnet(b_big)
#save i, hall values and distance to file
f = open(f"{b_small}_{b_big}_Distance_{timestring}.txt", "a+")
f.write(
f'{bs_i:.3f}\t{bb_i:.3f}\t{bs_hall:.7f}\t{bb_hall:.7f}\t{distance:.4f}\t{pos_1[0]:.4f}\t{all_nom_im}\n'
)
f.close()
#ramps down this magnet in small steps multiple of the large step
SetMagnet(b_small, bs_init - bs_stepsize * (j + 1))
#one magnet goes down 0.06 A, the other 0.02 A x 3
#SetMagnet( b_big, bb_init - bb_stepsize)
#####################
#if (abs(bs_hall - bb_hall) > dHall):
#if they are different, match again
matchHall()
#else:
bs_hall = GetHall(b_small)
bb_hall = GetHall(b_big)
print(
f"Fields: {bs_hall:.6f}, {bb_hall:.6f}, dHall: {((bs_hall - bb_hall)/bs_hall*100):.5f}%"
)
def scanDipoles(b_small, b_big):
#set number of steps (from previous experience scanning although might need adjustments)
bs_stepsize = small_step
bb_stepsize = big_step
#initial nominal quad values
q0_init, q1_init = GetMagnet(quad_pair[0]), GetMagnet(quad_pair[1])
for i in range(total_steps):
print(f"Step {i+1} out of {total_steps} large steps.")
#get initial current of dipoles
bs_init = GetMagnet(b_small)
bb_init = GetMagnet(b_big)
#SetMagnet( b_big, bb_init - bb_stepsize)
SetMagnet(b_small, bs_init - bs_stepsize)
#changing quads and taking pictures at 4 tunes
#take picture with all at init values
all_nom_im = SaveIm('allNom', viewer)
#take picture with q14 nom, q15 *8/11
SetMagnet(quad_pair[0], q0_init)
SetMagnet(quad_pair[1], -15.000)
pos_1 = GetBeamPos(all_nom_im, viewer)
sleep(5) #might need to increase this if the jumps in current are big
all_zero_im = SaveIm('Q15_minus15', viewer)
#take picture with q14 *1/2 and q15 nom
SetMagnet(quad_pair[0], 15.000)
SetMagnet(quad_pair[1], q1_init)
pos_2 = GetBeamPos(all_zero_im, viewer)
sleep(5)
q0_half_im = SaveIm('Q14_15', viewer)
#take picture with q14 zero, and q15 zero
SetMagnet(quad_pair[0], 10.000)
SetMagnet(quad_pair[1], -10.000)
pos_3 = GetBeamPos(q0_half_im, viewer)
sleep(5)
q01_half_im = SaveIm('bothTen', viewer)
#return quads to original values
SetMagnet(quad_pair[0], q0_init)
SetMagnet(quad_pair[1], q1_init)
pos_4 = GetBeamPos(q01_half_im, viewer)
#peak/intensity
#pk_1 = pos_1[2:]
#pk_2 = pos_2[2:]
#pk_3 = pos_3[2:]
#pk_4 = pos_4[2:]
#centroid positions
pos_1 = pos_1[0:2]
pos_2 = pos_2[0:2]
pos_3 = pos_3[0:2]
pos_4 = pos_4[0:2]
#get quadratic distance from centroids
print(
f"Centroids:\n({pos_1[0]:.2f}, {pos_1[1]:.2f})\n({pos_2[0]:.2f}, {pos_2[1]:.2f})\n({pos_3[0]:.2f}, {pos_3[1]:.2f})\n({pos_4[0]:.2f}, {pos_4[1]:.2f})"
)
distance = Dist(pos_1, pos_2, pos_3, pos_4, True)[0]
print(f"Dist= {distance:.5f}")
bs_hall = GetHall(b_small)
bb_hall = GetHall(b_big)
bs_i = GetMagnet(b_small)
bb_i = GetMagnet(b_big)
#save i, hall values and distance to file
f = open(f"{b_small}_{b_big}_Distance_{timestring}.txt", "a+")
f.write(
f'{bs_i:.3f}\t{bb_i:.3f}\t{bs_hall:.7f}\t{bb_hall:.7f}\t{distance:.4f}\t{pos_1[0]:.4f}\t{all_nom_im}\n'
)
f.close()