The stability criteria adopted was that the path did not escape from the Moon during an integration period of 1000 days (remaining with negative two-body Moon probe orbital energy during this period).
Consequently, all further evaluations were carried out using an integration period of 45 min before the actual chlorophyll profile measurement.
In the aforementioned detector, the integration period of the correlation processing is determined by the observation interval or the scattered signal duration which depends on the target size.
The spherical volume of 10 cm3 has been selected with an initial activity of 1 MBq and an integration period of 1920 h.
With the characteristic spacecraft speed of ≈13 km/s during cruise, this is equivalent to an integration period of one week.
Regarding the new bone formation within the implantation bed, it must be mentioned that the results of new bone formation after an integration period of 6 months did not differ between the synthetic and the xenogeneic bone substitute material [16].
Likewise, the fundamental role that primary mechanical fixation may play should to be taken into account, in order to protect the integration period of biological augmentation to the bone.
The absorbed dose to the sphere was calculated as 110 Gy (563 Gy including the absorbed dose contribution of daughters) for an administration of 1 MBq 227Th and an integration period of 80 days (T D = 1920 h).
For the analysis of the irradiance dependency of the formation of chlorophyll maxima, the mean value of surface irradiance was calculated for an integration period of 45 min prior to the chlorophyll depth profiling.
The absorbed dose calculation included the decay of 227Th and its progeny 223Ra, 219Rn, 215Po, 211Pb, 211Bi, and 207Tl for an initial activity of 1 MBq and an integration period of 1920 h.
For each sample, 20 spectra were averaged to reduce noise from the spectrometer with an integration period of 200 ms. Our color measurement procedure was repeated three times for each sample, with the probe lifted between each scan.
