def get_scan_timestamps(self):
     scan_down_time = 0
     scan_up_time = 0
     for i in range(len(self.smps_data)):
         if ''.join(self.smps_data[i][0].split()).lower() == "scanuptime(s)":
             scan_up_time = int(self.smps_data[i][1])
             scan_down_time = int(self.smps_data[i + 1][1])
             break
     scan_duration = scan_up_time + scan_down_time
     print ("Scan duration:", scan_duration)
     scan_start_times = self.smps_data[0]
     # generate scan end times from scan start times. Also, create a scan object for each scan
     for i in range(len(scan_start_times)):
         a_scan = Scan()
         self.scans.append(a_scan)
         start_time = datetime.strptime(scan_start_times[i], "%H:%M:%S")
         end_time = start_time + timedelta(seconds=scan_duration)
         a_scan.set_start_time(start_time)
         a_scan.set_end_time(end_time)
         a_scan.set_up_time(scan_up_time)
         a_scan.set_down_time(scan_down_time)
         a_scan.set_duration(scan_duration)
         a_scan.set_counts_2_conc(self.counts_to_conc_conv)