Objective: perform tomography
$#performed_by: $$performed_by <br><br>
$#date_occurred: $$date_occurred <br><br>
$#description_purpose: $$description_purpose <br><br>
$#cryoholder: $$cryoholder <br><br>
$#tem_magnification_set: $$tem_magnification_set <br><br>
$#tem_lowdose_method: $$tem_lowdose_method <br><br>
$#temperature_specimen: $$temperature_specimen <br><br>
$#assess_grid: $$assess_grid <br><br>
$#assess_ice_comments: $$assess_ice_comments <br><br>
$#assess_ice_thick: $$assess_ice_thick <br><br>
$#ice_type: $$ice_type <br><br>